title: Antigen-reactive T cell clones restricted by mixed isotype A beta d/E alpha d class II molecules.
abstract: Mixed isotype A beta dE alpha d class II molecule-restricted antigen-reactive T cell clones were obtained from (BALB/c x B6E alpha d)F1 mice. These T cell clones responded to keyhole limpet hemocyanin in the presence of (BALB/c x B6E alpha d)F1 but not CBF1 APCs. Both anti-A beta d and anti-E alpha mAbs blocked the proliferative responses of these clones. The frequency of such mixed isotype A beta E alpha-restricted T cell clones in (BALB/c x B6E alpha d)F1 mice was estimated to be approximately 10% from our limiting dilution cloning. The existence of such mixed isotype class II molecule-restricted T cells would have important implications for the expansion of the T cell repertoire as well as the induction of autoimmunity.
authors.affiliation: Department of Immunology, Saga Medical School, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Matsunaga
authors.forename: K
authors.initials: K
authors.lastname: Seki
authors.forename: T
authors.initials: T
authors.lastname: Mineta
authors.forename: M
authors.initials: M
authors.lastname: Kimoto
mesh_terms: D000818:Animals; D015704:CD4 Antigens / Q000276:immunology*; D002999:Clone Cells; D051379:Mice; D008822:Mice, Transgenic; D013601:T-Lymphocytes / Q000276:immunology*
chemical_list: D015704:CD4 Antigens